Sleeve-valve-engine-cooling means



Feb. 11, 1930. o, c, K539 1,746,538

SLEEVE VALVE ENGINE GOOLI NG MEANS Filed June 20, 1927 2 Sheets-Sheet 1' INVENTOR.

ATTORNEY.

Feb, 11, 1930. o. c. KREIS SLEEVE VALVE ENGINE COOLING MEANS Filed June 20, 1927 v 2 Sheets-Shet 2 INVENTOR.

' Jt rezIe KN N ATTORNEY.

Patented Feb. 11, 1930 UNITED sTATEs PATENT' oFrlcE oscaza 0. ms, 01' nnrnorr, HIIGHIGAN, assreuon TO coma-an mom eonroaarrou, or person, MICHIGAN, a oonroaarron or vmemn' SLEEVE-VALVE-ENGINE-COOIISG mans Application fled June 20,

This invention relates to internal combustion engines and refers more particularly to the sleeve valve type of engine. In this type of engine the upper extremity of the sleeve ordinarily works in a pocket formed between the cylinder head and cylinder. While the cylinder head is ordinarily jacketed for cooling water, the amount of available acketmg is limited principally because of the spark plug location and general arrangement of parts and as a result the sleeve pocket becomes overheated resulting in formation of steam ockets, carbon accumulation and general meflicient operation of the engine.

tionable characteristics of the sleeve valve engine by causing a positive circulation of cooling water through the cylinder head. One of the objects of my invention is to provide for such circulation in a simple and efficient manner. Y

Referring to the drawings in which like reference characters represent corresponding parts, a L i Fig. 1 is a section side elevationview longitudinally through adjacent front cylinders Fig. 2 1s a section view through 2-2 of Fig. 1, and j h Fig. 3 is a bottom plan view of a cylinder In the drawings reference character A represents the engine w 'ch is illustrated as hav ing a plurality of c inders 10 each having the usual piston 11 and sleeve valve 12. The engine illustrated is the single sleeve valve type in which the sleeve is moved in a combined reciprocating and oscillating path to cause the sleeve intake and exhaust ports 13 and 14 to function with the cylinder intake and exhaust ports 15 and 16 respectively in a well known manner. The particular arrangement of ports and the manner of driving the sleeve valves form no part of this invention and may be of the usual well known or other preferred construction and arrangement. l The cylinders 10 are shown provided with a cooling water acket 17 which surrounds or partially surrounds the cylinders 10, the

My invention overcomes the above objec- 1927. Serial no. 199,923.

water being circulated through the jacket by the pump 18 which may be of any referred construction suitably located and d iven for this purpose. In Fig. 1 the pump is shown in one o 1ts customary positions mounted on the drive shaft 19 carrying the usual fan and pulley 21 which may be driven from the engine crankshaft (not shown) in the well known manner. The cooling water is supphed by pipe 22 connectin the usual radiator m (not shown) and deliveref to the water jacket 17 at 23.

Each cylinder is closed at the top preferably by a cylinder head B which may be formed with walls 24 and 25. The wall 24 ea together with e associated cylinder forms a valve pocket 6 accommodating the movement of the upper portion of the sleeve valve. 12. The wall 25 is spaced from the wall 24 to form the cylinder head cooling water-jacket It. 27 and also defines the combustion chanrber 28.

In order to cause positive circulation of the cooling water throughout the cylinder head jacket 27, the c linder head B is formed preferably at one si e with an inlet 29 which communicates with one or more openings 30 leading to the water jacket 17. Such opening 30 constitutes the only means of communication between the cylinder head jacket 27 and cylinder jacket 17 whereby the water is forced to follow a definite path in its circulation as indicated by the arrows in Figs. 1 and 2. In order to further guide the water in a circulatory path down into the cylinder head jacket,across the same, and thence upwardly for discharge into the header 31, I have provided the baflies 32. These baflles prevent the water from passing directly across the cylinder head by causing the water to move downwardly below their extremities and through the openings 33 at the bottomeof the cylinder head jacket whence the water passes upwardly on the other side of the baflles to the header 31 which communi- Q! cates with the like discharge areas of the various cylinders and thence preferably communicates with the inlet portion of the usual radiator.

The cylinder heads B may be secured to the respective cylinders b the corner studs 84. The cover 35. prefera 1 covers thecylinders' B and forms the hen. er 31. This covgmg the upper ends 37 of the cylinder Elia 38 represents the usual spark plug openings. If desired for. appearance a top cover 39 may be provided as shown.

It will be a parent that I have provided simple and e ective means for circulating the coolin waterthrough the cylinder heads whereby the cylinder heads and valve pockets will be ade uately cooled.

What I c aim as my invention is:

1. A 'sleeve valve internal combustion engine comprising a plurality of cylinders, pistons 0 enable within said cylinders, a water jacketing structure surrounding the cylinders, a pump for causing circulation of coolin water longitudinally of and around the cy inders in said jacket, cylinder heads fitted on said cylinders respectively each having an opening communicating with the cylinder water jacket along one side of the c linders, the said openings constituting the only means for passageof cooling water from the cylinder water 'acket to the cylinder heads,

-. each of said cy inder heads being provided with spaced walls forming a pocket for a sleeve valve and also forming an annular cylinder head water jacket communicating with the said cylinder opening, bafiles for the cylinder head jackets extending substantially longitudinally of the engine said bafiles having their lower ends spaced from the bottom 0 the cylinder head jackets respectively whereby the cooling water from the respective openings is caused to travel downwardly beneath the ba-flles on one side thereof, and upwardly on the other side thereof, and a rewith the cylinder head jackets at the side 0 the bafiles last mentioned.

2. A sleeve valve internalcombustion engine comprising a plurality of cylinders, pistons operable Within said cylinders, a water jacketing structure surrounding the cylinders, a pump for causing circulation of coolin water longitudinally of and around the cy inders in said jacket, cylinder heads fitted on said cylinders respectively each having an opening communicating with the cylinder water jacket along one side of the cylinders, the said openings constituting the only means for passage of coolin water from the cylinder water jacket to t e cylinder heads, each of said cylinder heads bein provided with spaced walls forming a poc st for a sleeve valve and also forming an annular cylinder head water jacket communicating with the said cylinder opening, bafiles for the cylinder head jackets extending substantially longitudinally of the engine said bafiles having their lower ends spaced from the bottom of the cylinder head jackets respectively whereby the cooling water from the respective openings is caused to travel downwardly beneath the bafiies on one side thereof and upwardly on the other side thereof, and a return water header communicatin with the cylinder head jackets at the side 0 the battles last mentioned, said return water header being otherwise substantially free from communication with the cylinder. water jacket.

3. A sleeve valve internal combustion engine comprising in combination, a water jacketed cylinder structure provided with a water outlet at the top of the cylinder structure, a cylinder head structure seated on the cylinder structure and having an annular water jacket portion depending within the cylinder and spaced therefrom to provide a sleeve pocket, said cylinder head jacket being open upwardly at one side of the engine, said cylinder head structure having a conduit portion overlying the cylinder head jacket at the other side of the engine, said conduit being constructed and arranged to receive water from the cylinder jacket outlet for distribution into said cylinder head jacket, and a cover overlying the cylinder head jacket and providing a water outlet header at the first said side of the engine.

4. A sleeve valve internal combustion engine comprising in combination, a water jacketed cylinder structure provided with a water outlet at the top of the cylinder structure, a

cylinder head structure seated on the cylinder structure and having an annular water jacket portion depending within the cylinder and spaced therefrom to rovide a sleeve pocket, said cylinder head acket being open upwardly at one side of the engine, said cylinder head structure having a conduit portion overlying the cylinder head jacket at the other side of the engine, said conduit being constructed and arranged to receive water from the cylinder jacket outlet for distribution into said cylinder head jacket, and a cover overlying the cylinder head jacket and providing a water outlet header at the first said side of the engine, said cover seating on said cylinder structure adjacent said cylinder head structure.

5. A sleeve valve internal combustion engine comprising in combination, a water jacketed cylinder structure provided with a water outlet from the cylinder jacket at the top of the cylinder structure, a cylinder head having a water jacket portion depending within the cylinder and spaced therefrom, sleeve valve means within the said space, said cylinder head seating on top of the cylinder structure, a cylinder head jacket cover seating on the top of the cylinder structure and providing a water outlet header in communication with the cylinder head jacket at one side of the engine, and a water guiding wall beneath said cover at the other side of the engine teramuse minating above the cylinder structure adjacent the cylinder jacket outlet and cooperating with the cylinder head jacket to form a water conduit.

6. A sleeve valve internal combustion engine comprising, a jacketed cylinder, a jacketed cylinder head depending within the cylinder and having a portion seating on the a cylinder, a cover over the cylinder head having a portion seating on the cylinder and forming a water outlet header at one side of the engine, said cylinder having a jacket outlet intermediate the cylinder head and cover seating portions, and a wall beneath the cover at the other side of the engine terminating adjacent the cylinder jacket outlet also intermediate the cylinder head and cover seating portions, said wall guiding water from the cylinder jacket outlet toward the cylinder head jacket.

In witness whereof, I hereunto subscribe my name this 17th day of J uhe, A, D. 1927-. a OSCAR C. KREIS. 

